The Proceedings of Conference of Kansai Branch
Online ISSN : 2424-2756
2000.75
Session ID : 115
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115 Relation between Singular Stress Field and Dislocation Structure around a Crack
Takuya Miyake, Akihiro NAKATANI, Hiroshi KITAGAWA
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Keywords: Discrete Dislocation Dynamics, Crack Propagation, Dislocation Structure, Stress Singular Field
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Abstract
Two dimentional DDD simulation is applied to analysis of the fatigue crack tip field under mode I cyclic loading. Change of stress distribution around the crack tip and structure formed by dislocation movement are analyzed. The equivalent stress distribution obtained by asymptotic solution for rigid plastic field is compared with the results of DDD simulation.
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© 2000 The Japan Society of Mechanical Engineers
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